AD 2018-13-05
Effective 07/26/2018 · Published 06/21/2018
Airworthiness Directives; Honeywell International Inc. Turboprop and Turboshaft Engines
Summary
We are adopting a new airworthiness directive (AD) for certain Honeywell International Inc. (Honeywell) TPE331 turboprop and TSE331 turboshaft engines. This AD was prompted by recent reports of failures of the direct drive fuel control gears and bearings in the hydraulic torque sensor gear assembly, part number (P/N) 3101726-3. This AD requires initial and repetitive engine oil filter sampling and analysis of the af…